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Atmospheric ozone began to drop sharply in which decade?

A1960s
B2000s
C1980s
D1950s
Answer & Solution
Correct answer: C. 1980s
1. The drop was linked to synthetic chemicals. 2. It began in the 1980s. 3. CFCs were the culprits. _Source: syllabus Science, Chapter 15, Our Environment._
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